Support for shafts of polishing-wheels and like structures.



E. B. STONE.

SUPPORT FOR SHAFTS 0F POLISHING WHEELS AND LIKE STRUCTURES.

APPLICATION FILED JULY20. 1912.

1,186,347. Patented June 6, 1916.-

WITNESSES:

fill COLUIIIA runocllwn cm, WAIHINGION, D. c.

UNITED STATES PATENT O FICE.

EIQMER B. STONE, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TOTHE NEW BRITAIN MACHINE COMPANY, OF NEW BRITAIN,

NECTICUT.

CONNECTICUT, A CORPORATION OF CON- Specification Letters Patent.

Patented June 6, 1916.

Application filed July 20, 1912. Serial No. 710,601.

To all whom it may concern:

Be it known that I, ELMER B. STONE, a citizen of the United States, and a resident of New Britain, in the county of Hartford and State of Connecticut, have invented a new and Improved Support for the Shafts of Polishing-Wheels and like Structures.

My invention relates to the class of devices above named, and an object of the invention, among others, is to provide a support for the bearings of said shafts that shall reduce the wear upon the bearings and thus increase their durability.

One form of device embodying my invention and in the construction and use of which the object above set out, as well as ends of said shaft, the outer ends of the shaft being mounted in bearings rigidly supported by the frame. In the operation of these machines considerable pressure is brought to bear upon the Wheels upon-oneside, tending to throw the shaft out of aline- -ment, or bowing it slightly between the bearings, tending to give it a gyratory movement, with a result that the bearings are of extremely short life, and are quickly worn out, this being a serious objection in machines of this class. By my improved machine, illustrated and described herein, I have provided means whereby this wear upon the bearings is reduced to a minimum, such machine consisting of a standard or frame 5 composed of any suitable material in any desired form, and having a base 6 upon which it may rest.

The bearings 7 of any convenient form and construction are located upon the top of the standard and a shaft 8 is suitably mounted in these bearings so that it will freely rotate therein but is otherwise rigidly held thereby, that part of the shaft projecting beyond the sides of the standard 5 havingsuitable wheels, as abrading' wheels 9 and buffing wheels 10, secured thereto. Pulleys 11 for the reception of a belt or like means for rotating the shaft are secured thereto, and the position of the belt on the different pulleys may be controlled, as by a shipper 12. All of the parts thus far described may be of any ordinary and wellknown construction, and further detailed description is therefore omitted herein. As hereinbefore mentioned, much pressure is brought to bear upon these wheels .on one side by pressing articles against them to be polished, and, further, the wheels are of such construction that they are unevenly balanced; that is, there is liable to be more weight upon one side than upon another of the shaft, with a result that the ends of the shaft are subject to considerable vibration,

and also with a result that when supported at their outer ends in a rigid bearing, the shaft soon becomes worn and must be removed and replaced by a new shaft at a considerable expense and loss in time of the machine being repaired.

In my improved machine, bearing arms 13 are supported by the frame, the journals for the ends of the shaft consisting of sleeves 14, projecting into openings in the arms, these sleeves having headed ends 15 constituting the clamping nuts for the wheels 9 and 10, this headed end being shaped to receive a wrench or like tool for turning the sleeve and nut. With this construction, when a sleeve becomes worn, as from the causes mentioned herein, it may be easily removed and replaced by another sleeve at little expense and loss of time. Spacing sleeves 17 are located between the nut and wheels and between the wheels to impart thrust of the nut against the wheels, the nut being screw threaded upon the shaft to clamp the spacing sleeves and wheels securely in place. I

A material part of my invention resides in j a supporting bar 16 secured to the standard or frame 5, and projecting on opposite sides thereof, and in a position to receive the arms 13. This bar is provided with considerable spring qualities, so that it willyield and respond to any vibrations of the shaft 8. The arms 13 and the bearings for the ends of the shaft are thus yieldingly supported so that the vibrations of the shaft ends will not rapidly wear the bearings in the ends of the arms, and as a result this wear is reduced to a minimum, and a shaft may therefore be used for a maximum length of time. It will be understood that the sleeves 14 may be employed when the resilient bar 16 is used, but such sleeves may be dispensed with, in which event it will be found that comparatively little wear results to the end of the shaft.

While I have shown and described herein one form of mechanism embodying my idea, this may be departed from to a greater or lesser extent without avoiding the invention.

I claim:

1. A standard, a bearing mounted on the standard, a shaft rotatably mounted in and rigidly held by said bearing and projecting beyond the side of'the standard, devices adapted to receive pressure secured to the projecting end of said shaft, a bearing for the outer end of the shaft, and a pivotally mounted yielding support for sustaining the bearing for the outer end of the shaft.

2. A standard, a shaft rotatably mounted on the standard but otherwise rigidly held thereby and projecting beyond the side thereof, devices adapted to receive pressure secured to said shaft outside of the standard, a resilient bar secured to the standard and projecting substantially parallel with said shaft, and a bearing for the outer end of said shaft, said bearing being resiliently supported by said bar.

3. A standard, a shaft rotatably mounted on said standard but otherwise rigidly held thereby and projecting beyond the side thereof, devices adapted to receive pressure secured to said shaft outside of said standard, a bar having resilient characteristics, secured to the standard and projecting beyond the side thereof substantially parallel with said shaft, an arm pivotally mounted upon said bar and resiliently supported thereby, and a bearing for the end of the shaft, said bearing being supported in said arm.

4:. A standard, a shaft rotatably mounted on the standard but otherwise rigidly held thereby and projecting beyond the side thereof, devices adapted to receive pressure secured to said shaft, a support for the outer end. of said shaft, and a bearing including a sleeve extending into said support to form the bearing for said shaft, said sleeve also forming a clamp nut for the wheels upon the shaft.

5. A standard, a shaft rotatably mounted on the standard but otherwise rigidly held thereby and projecting beyond the side thereof, devices adapted to receive pressure secured to the projecting end of said shaft, a resilient bar secured to said standard and projecting substantially parallel with said shaft, and a bearing supported on said bar for the outer end of said shaft.

6. A standard, a shaft rotatably mounted onthe standard but otherwise rigidly held thereby and projecting on opposite sides thereof, devices adapted to receive pressure, secured to the projecting ends of said shaft, a supporting bar of'yielding material secured to and projecting beyond the opposite sides of the standard substantially parallel with said shaft, arms pivotally mounted upon said bar at opposite sides of the standard, and bearings located in the ends of said arms to support the projecting ends of said shaft.

7. A standard, a shaft rotatably mounted on the standard but otherwise rigidly held thereby and projecting beyond the side thereof, devices adapted to receive pressure secured to the projecting end of said shaft, a sleeve screw threaded upon the shaft and forming a journal therefor and a clamping nut for the wheels, and a bearing supported by the standard and positioned to receive said sleeve.

8. A standard, a shaft rotatably mounted on the standard but otherwise rigidly held thereby and projecting beyond the side thereof, devices adapted to receive pres sure secured to the projecting end of said shaft, a resilient bar secured to the standard, an arm projecting from said bar, and a sleeve screw threaded upon said shaft to form a clamping nut for said wheels and a journal for said shaft within said arm.

9. A standard, bearings located at opposite sides of the standard, a shaft rotatably mounted in said bearings but otherwise rigidly held thereby and projecting beyond the end of the standard, a bar of resilient material secured to the standard and projecting from t the side parallel with said shaft, an arm supported by said bar, a bearing in said arm for the outer end of said shaft, and polishing or like finishing wheels secured to the shaft between the side of the standard and the hearing at the end thereof.

10. A standard, a shaft supported in bearings at the top of the standard, a bar secured to the standard at one side of a plane passing vertically through the axis of said shaft, said bar being composed of resilient material and projecting from the side of the standard parallel with the shaft, an arm secured to said bar, a bearing on said arm for the outer end of'said shaft, and polishing or like finishing Wheels to the projecting end of the shaft, a bearing 7 secured to the shaft between the standard for the outer end of the shaft, and a yie1d- 10 and the bearing for the outer end thereof. ingly mounted support for said bearing. 11. A standard, a bearing supported by if the standard, a shaft rotatably'mounted in ELMER B. STONE.

but otherwise rigidly held by said bearing Witnesses: and projecting beyond the side of the stand- W. L. HOWE, ard, devices for receiving pressure secured ALICE B. MUNSON.

Gopiea of thin patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Y Washington, D. 0." 

